Inkstand.



PATENTED NOV. 28, 1905. F. M. ASHLEY. INKSTAND. APPLICATION FILEDMAE.22, 1905.

7. WEE Qz 0 I r Ill i l y zw UNITED STATES PATENT OFFICE.

INKSTAND.

Specification of Letters Patent.

Patented Nov. 28, 1905.

Ap licatio filed March 22, 1905. Serial No. 251,394;-

To 41% whom it may concern.-

Be it known that I, FRANK M. ASHLEY, residing in the city, county, andState of New York, have invented certain new and useful Improvements inInkstands, of which the fol lowing is a specification.

My invention relates to inkstands, and particularly to that class inwhich a diaphragm of soft rubber is 'used to force the ink to thedip-tube by the depression of the same.

The object of the invention is to devise a more perfect stand of thischaracter than has heretofore been made, and particularly to make acover for the said soft-rubber diaphragm which will fit with the rubberin such a manner that it will not be loose on the stand and at the sametime will insure a tight joint between the rubber diaphragm and the topof the reservoir.

Referring to the drawings which form part of this specification, and inwhich similar letters of reference indicate corresponding parts, Figure1 is a vertical sectional View of the said inkstand in its normalworking condition. Fig. 2 indicates the bottom of the cover for therubber diaphragm.

Referring to Fig. l, A indicates the body of the stand; B, the reservoirtherein. C indicates the soft-rubber diaphragm. D indicates thecover-and holding means for said diaphragm, and E is the dip-tube.

The diaphragm O fits into the top of the body of the stand air-tight atC.

The cover D is formed with an annular groove on its under side, as shownat D, into which the top or flanged part of the diaphragm C fits snugly.The inner diameter of the cover D has a depending portion constituting aring D which fits the rubber diaphragm, as shown at D and presses therubber tightly against the inner edge of the stand at A, and thusinsures a tight joint and at the same time holds the cover D firmly tothe stand, so

that should the stand be inverted the cover D- would not drop off. Thisavoids the rattle heretofore common to this stand and increases itsutility in a marked degree.

Thedescribed relation between thevcover, the diaphragm, and the top ofthe body portion of the stand admits of the cover being removed whendesired without involving the removal of the diaphragm-flange from saidbody portion. This feature will be advantageous in replenishing thesupply of ink; but in the form of the invention disclosed in thedrawings the removal of the top for the purpose stated Will require theWithdrawal of the dip-tube on account of the extended diameter of thedip at the upper end of said tube. When the dip-tube and top have beenso removed, the diaphragm is depressed to'present an adequate medium forthe introduction of the ink and escape of air through its centralopening.

The dip-tube E is supported by the diaphragm C in the usual manner, asshown at E; but in order to insure a tight joint between the diaphragm Cand dip-tube at E the diameter of the tube at E is made somewhat largerthan heretofore, and this increase in diameter relative to the openingthrough the diaphragm forces the rubber diaphragm into the depressedconcavo-convex portion, as

shown at F, and this also serves to give to the rubber or depression ofthe same a nice action and assists in the permanency of its form underthe Weight of the dip-tube.

It will be appreciated that by holding the diaphragm against the body ofthe stand and establishing and maintaining the central depressed portionF by means of the special frictional engagement of the dip-tube, due tothe normally smaller diameter of the central opening within thediaphragm, the proper confinement of air within the reservoir ispromoted, while a satisfactory range of lifting movement is permittedfor the dip-tube without liability of disturbing the position of thediaphragm, said upward movement of the tube having the obvious eifect ofaugmenting the air-tight joint between the central depressed portion andthe tube.

The depression in the bottom of this stand at G allows practically allthe ink to be forced from the reservoir in using the same.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In an inkstand, a body portion containing a reservoir, a rubberdiaphragm held at the top thereof and having acentral opening, and adip-tu be having a part of larger diameter than the normal diameter ofthe diaphragm-opening, the relative difference in diameters of saidtubeand opening resulting in a central depressed portion of thediaphragm.

2. In an inkstand, a body portion containing a reservoir, a rubberdiaphragm held at the top thereof and having a central opening, a covercooperating with said diaphragm, and a dip-tube having apart of largerdiameter than the normal diameter of said diaphragmopening, said tubepart being frictionally engaged within said diaphragm opening andthereby establishing a central depressed portion of the diaphragm.

3. In an inkstand, a'body portion containing a reservoir, a rubberdiaphragm provided with a flange resting on the top of said bodyportion, said diaphragm also havingacentral opening, a cover cooperatingwith said dia-' phragm-flange, and a dip-tubehaving a part of largerdiameter than the normal diameter of said diaphragm-opening, said tubepart being frictionally engaged within said diaphragm-opening andthereby establishing a central depressed portion of the diaphragm.

4:. In an inkstand, a body portion containing a reservoir, a rubberdiaphragm fitted in the top thereof, and provided with a flange restingon the top of said body porti0n, a cover for said diaphragm providedwith an annular groove within which the said flange is frictionallyengaged, said cover normally being freely supported in position relativeto said body portion and removable without removing the said flange fromthe body portion.

5. In an inkstand, a body portion containing a reservoir, a rubberdiaphragm fitted in the top thereof and provided with a flange restingon the top of said body portion, a cover for said diaphragm providedwith an annular groove into which said flange fits, said cover having adepending-ring portion fitting the inside walls of said diaphragm andpressing the same against said body portion, said cover being removablefrom the body portion without necessitating the removal of saiddiaphragm, and a dip-tube supported by said diaphragm.

6. In an inkstand, a body portion containing a reservoir with a centraldepression in the bottom thereof, a rubber diaphragm fitted in the topof said body portion and provided with a flange resting on the top ofsaid body portion, a cover for said diaphragm provided with an annulargroove within which said flange is frictionally engaged, said covernormally being freely supported in position relative to said bodyportion and removable without removing the said flange from the bodyportion, and a dip-tu be the lower end of which depends within thecentral depression of the body portion of the stand.

In testimony whereofIhave signed my name to this specification in thepresence of two subscribing witnesses.

FRANK M. ASHLEY.

Witnesses:

PHILIP K. STERN, WM. PAXTON.

